公开(公告)号：US20090284870A1

公开(公告)日：2009-11-19

申请号：US12359746

申请日：2009-01-26

申请人： Yusuke Nojima ,  Shinji Koganezawa

发明人： Yusuke Nojima ,  Shinji Koganezawa

IPC分类号： G11B5/48

CPC分类号： G11B5/4853

摘要： An arm has one end coupled to a head suspension and the other end defining a domed surface in a head suspension assembly. The domed surface establishes point contact against the side surface of a head slider. The arm is designed to restrain the direction of application of a force along an imaginary plane including the back surface of the head slider. A piezoelectric element is bonded to the arm at a position between the one end and the other end of the arm. The head suspension assembly allows the arm to curve in response to expansion/shrinkage of the piezoelectric element. A driving force is applied from the arm to the head slider based on the curvature of the arm. Since point contact is established between the arm and the side surface of the head slider, the curvature of the arm cannot be restrained.

摘要翻译： 臂的一端联接到头部悬挂，另一端在头部悬挂组件中限定圆顶表面。 圆顶表面与头部滑块的侧面建立点接触。 臂被设计成限制沿着包括头部滑块的后表面的假想平面施加力的方向。 压电元件在臂的一端和另一端之间的位置处结合到臂上。 头悬挂组件允许臂响应于压电元件的膨胀/收缩而弯曲。 基于臂的曲率，从臂向头滑块施加驱动力。 由于在头部滑块的臂和侧表面之间建立点接触，所以不能抑制臂的曲率。

公开(公告)号：US08098461B2

公开(公告)日：2012-01-17

申请号：US12754520

申请日：2010-04-05

申请人： Yusuke Nojima ,  Shinji Koganezawa

发明人： Yusuke Nojima ,  Shinji Koganezawa

IPC分类号： G11B21/10

CPC分类号： G11B5/4826 ,  G11B5/483 ,  G11B5/4873 ,  G11B5/5552

摘要： According to one embodiment, a micro actuator device, includes: a first piezoelectric element superposed on a first lower support plate coupled to a fixed plate; a second piezoelectric element superposed on a second lower support plate in parallel with the first lower support plate coupled to the fixed plate; a first upper support plate interposing the first piezoelectric element between the first upper support plate and the first lower support plate, and generating strain equal to strain of the first lower support plate when a tensile force of the first piezoelectric element acts on the first lower support plate; and a second upper support plate interposing the second piezoelectric element between the second upper support plate and the second lower support plate, and generating strain equal to strain of the second lower support plate when a tensile force of the second piezoelectric element acts on the second lower support plate.

摘要翻译： 根据一个实施例，微型致动器装置包括：叠置在联接到固定板上的第一下支撑板上的第一压电元件; 与耦合到所述固定板的所述第一下支撑板平行地叠置在第二下支撑板上的第二压电元件; 第一上支撑板，在第一上支撑板和第一下支撑板之间插入第一压电元件，并且当第一压电元件的张力作用在第一下支撑件上时产生等于第一下支撑板的应变的应变 盘子; 以及第二上支撑板，其将所述第二压电元件插入所述第二上支撑板和所述第二下支撑板之间，并且当所述第二压电元件的张力作用在所述第二下支撑板上时产生与所述第二下支撑板的应变相等的应变 支撑板